There is very little that is not known about the next Sony Xperia flagship. We expected the company to unveil the Xperia Z4 at MWC, but the company made the Xperia M4 Aqua and Xperia Z4 tablet official, while giving the flagship smartphone a skip. The latest leak of the Xperia Z4 comes from GFXBench database revealing some important specifications of Sony’s next flagship.

On the website, the handset is named Sony E6553, which is speculated to be the Xperia Z4. GSMArena explains that ‘the letter in the model number changes each year, so for 2014 it was D, and Sony’s first flagship of last year (the Z2) had the model number D65xx, while the Z3 was D66xx. Since the Z4 will be the first (and possibly only) top of the line handset from the company this year, an E65xx designation seems extremely likely.’

According to the leak, the Xperia Z4 is set to sport a 5.1-inch 1080p display. It will be powered by a 1.9GHz Snapdragon 810 octa-core chipset paired with 3GB of RAM. It should house 32GB of internal storage and sport a 20-megapixel rear sensor with LED flash. The front snapper will house a 5-megapixel sensor.

Just like all the predecessors, the Xperia Z4 should be waterproof and dustproof (mostly IP68 certified). It is mentioned that it is running on Android 5.0.2 Lollipop, and has connectivity options like Bluetooth, NFC, GPS and Wi-Fi support. Other features include a 3,420mAh battery powering the phone.

Previous image leaks show a few major changes on Xperia Z4, the big one being the absence of the flap-protected insert that housed the microSD and nano-SIM slots just above the phone s power button. With this flagship, there is speculation that the company might have ditched the expandable memory option altogether. The flagship unveil is expected to be anywhere between June to September.

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